Valve



Dec. 4, 1928.'

G. R. WILDERN VALVE Patented Dec. 4, 1,7928. .fg

UNITED STATES PATENT OFFICE- GEORGE n. WILDERN, or. DETROIT, MrcHIGAN.

' vALvn.

Appneationnied January 2s, 1927. serial No. 164,265.

. gas.

With the above and other objects in view,

my invention yconsists in 7 the arrangement,

combination and construction of the various parts of my improved deviceas described in the specification, claimed in lmy claims and shown inthe accompanying drawings, in which: i y Fig. 1 is a sectional view ofmy improved device with a portion of the tankto which it may be attachedshown in elevation.

Fig. 2 is a rear elevation of myfimproved device, certain parts beingbroken away and other partsbeing shown in section tobetter Villustratethe invention. Fig. Bis a front elevation ofthe regulating dial utilizedin my improved device.. I have shown a chamber or casing which Vmaybesaid to comprise a lbottom'enlarged portion 5, central restrictedportion 6 and top enlarged portion 7. VThe portion 7 is `provided withan opening inthe back thereof which may be closed by a plate 8 of brassor other suitable .material which is secured to the casing by screwstuds 9. The face of the portion 7 is provided `with anindicating scale10 across which `anv indicating finger 11 .may move. The inger 11 ismounted on the -pin 12 which is secured to rotate therewith kby thesetscrews 13. The pin 12 is rotatably mounted in the apertured boss 14and extends with-y in theportion 7 of the chamber. Connected to thepinwithinthe chamber as at 15 is one end oa coil'16 of thermostaticmetal The other end of the coil 16 is positioned between the spring arms17 and 18 of a bell crank lever device which is` made up of a continuouslength of spring materialv and pivoted on the stud 19. A stud 20 is`secured in the wall of the chamber 7 and hasa split end 21 extended intothe chamber and receiving the coil 16 adjaccnt'its end to guide vthemovementof the same. The lower end of the bell crank lever device isdesignated Vas '22 Vand is looped around the notch 23 on the end oftheplug 24 in the tube25` so as to hold the tube in suspended position.The tube 25 extends through the restricted portion 6 of the chamberbeing tions 26.

Tliejportion 5 of thechamber is provided.V

with anv inlet pipe' 27 and an outlet pipev 28, Vthe latter extendingthrough the pipe 29 vto a point within. the Vrestricted portion6'andalso within the tube 25. `A- quantity of mercury ory other suitable*heayy'k ,liquid 30 is provided in the bottom of the portionchambersurrounding the pipe'27. p

The device as ay whole may bemounted upon a tank 31 which may beconsidered for the purpose of this application as a convenl guidedtherein` by spaced projecl 5 of the tional water tank, with` the plate 8and coil i 16 held directly adjacent the. tank. Assum ing that the waterin the .tank is cold'the coil 16 will be acted uponto Amove against thespring arm 18 so as to liftthe tube 25 to the position shown in Fig. 2.The pipe 27 may be connected to. a suitable supply of light Huid i suchas gas, the arrows in Fig. 2 .indicating `the incoming of the gas andthe passageol `the same between the tube 25 and the pipe 29.

to the .top of the tube 25 yandthence down through the pipe 29 and pipe28 to a suitable burner for heating'thewater in thetank (not shown).reached a predetermined higher temperature, the heat thereof will beconducted through the tank wall into the portion 7 of the chamber andact upon the coil 16 to cause it to n exert ,pressure on the spring arm18ct the Vbell crank lever sc as to press the tube 25 downwardly untilit engages inthe mercury v 30,. As'soon as the tube 25 begins torestrict When the water in the tank has the flow of gas, pressure changeoccurs which hastens contact with the mercury and acts to snap 4the tube25 into position'where the openl end thereof' is completely immersed inthe mercury andthe closed end thereof or plug 24'will rest ontlie openend of the pipe 29.

The, closing of vthe end ofthe pipe 29 will tend to prevent splashing otthe mercury up over the'end of the pipe, in the event the pipe is not ofsutlicient length. l/Vhen the water .in the tank has again cooled tocause the coil 16 Vto act on'the spring arm 18 and lift the vtube 25,the lirstbreaking ofthe open end ot' the tube with. the mercury willpermit the entry ofgas and the pressureof the gas will A be exertedagainst the inner tace of the plugl 24 vso as to snap the tube 25 to itsextreme upward position and ,therebyrfully openpthe valve.

. `lt be appai-eiitwthat movement of theA indicator finger 11 will tendto wind and unwind the coil 16 dependent upon thejdirect-ion` Voi itsmovement, correspondingly adjustingV the tension of the coil and theperiods which it'will'operate to open and close the valve.

y f :1, In al device of the ,classidescribed, `an

It will be apparent that other means than the` thermostatic means hereYshown maybe utilized for opening and closing the valve and that variousother changes maybe `made.

in the arrangement, combination andfcon struction ofthe variousparts ofmyimproved deviceV without departing from the spirit of,-

- my invention, and it ismy intention to cover by my claims suchchangesas may be reasonably included Within the scope thereof.

What I claim is:

inlet pipe vand an outlet pipe, a common Y chamberintowhichsaid pipeslead, a relai tively heavy tluidheld in said chamber subject to andmovable as a body by pressure from fluid entering the intake andsurrounding one of said pipes, a tube enclosing said latter pipe havinga. closedkend extending beyond the endof saidpipeand movable to y formoving the tube..

Vextended beyond the endof the pipe within bringits other end into andout of-said heavy fluid to make and break connectionbetween said pipesand temperature responsive means 2.1i; .a device of the class described,a chamber having inlet and outlet openings, the

latter extending in Vthe formV of a pipe into the interior of thechamber, a tube having an open end enclosing said pipe and a close'dendthechamber, a body of relatively heavy fluid in said chamber around saidpipe and below the intake opening, whereby a relatively light fluid mayenter the intake, pass between the tube and `pi e, thence into the pipeand out of the cham er, and temperature responsive means for moving thetube intothe body of relativelyheavy lluid to` seal the passage of saidlight fluid.

3. In a device of the class described, la

vchamber having inlet and outlet openings, the

latterr extending in the -form o fa pipe into the interior of thechamber, Va9 tube having an open u' end enclosing said Vpipe andaclosed` en'd extendedbeyond ltheend of the pipe' *within the chamber, abody of relatively open end of` said pipe.

heavy fluid in said chambei'around said pipe and below the intake`opening, whereby arelatively light fluid may enter -the intake, passbetween the tube and pipe, thence into the pipe and out ot the chamber,and temperature responsive means for moving the tube into the body ofrelatively heavy fluid to sealthe urther passage of said light fluidwith the closed end of'said tube resting on the p 4. In a device of theclass described, a chamberhaving inlet and outlet openings, the

further p latter extending the'forinof a into the interior of thechamber,` a tube having an Vopen end enclosing sa1dp1pe anda closed endextended beyond theend of the pipe within 4.the chamber, al bodyofrelatively heavy fluid in said chamber around said pipe and below theintake opening,- whereby a relatively light fluid may enter the intake,pass between the tube and pipe, thence into the pipe and out of thechamber, and Vmeans for movingthe tube* into thebody of relatively heavyfluid to seal thefurther passage of'saidlightfluid and then moving itout of the heavy `liquid `tol break the seal,saidmeansoperating-.inresponseftotemperaturevariatmns Y ,i

n 5,.In a `device ofthe class described, chamber having-inletV andoutlet openings, Y the latter extendingin the form otta ipe into theinterior of the chamber, a tube aving .anopen 'end enclosing saidpipevand a closed endextended beyond the end ont the pipe withinthefchamber, a body ofrela.- tively heavy fluidfin said chamber aroundsaid -pipe and below fthe intake opening, whereby are-'lativelylightfluid may enter the intake, pass between the tube and pipe,thence^ intothe pipe and out'of the chambenand means for moving'the tube into thebody of A of as envy liquid` i@ break the sail, Said means operating inresponseto temperature relatively heavy flui'dzto sealthe' further pas-Y sage ofaidA light fluid and then movin(lr Vitfout.`

variations and comprisinga coil of `tlaerntiostatic'pmetal connected atone end wit-ha bell crank lever, said lever being connectedgwiththetube.y

6. A device of theiclass` described comprisingfa gasintakeandxgasfoutlet, a` chamber l mercury to close `the `passage fof gasfromthe intake to the outlet and clear saidtube 'end from the mercury to`open thesaid, gas passage, the pressure of the gas assisting `tofsnapthe-tube freeot the mercury and' immersefthe ,endthereof in-thesameinthe said alternate 7. A device-of the class comprising a` gas intakeand gas outlet, archamber if@ through whichA the. gas passes, asu plyofAVmercury freely disposed 1n the'cham ersubject tothe pressure of the`gas, autube in the "chamber and meansformovingthe tube relative totheAmercury to alternatelyimmerse passage of gas from the intake to theoutlet and: clear said tubeend Vfrom the me'rcu to Aopen the saidgas-passage', the 'pressureV the cury and immersetheend thereofintliesame in the said alternate movements. y A

Vione "end of the tube in the `mercury tocloSe the i gasassistingtosnaplthe tube freeof the merf ing said chamber fromsaid inlet, a heavyliquid in said chamber subject to the pressure of' flui-d entering saidchamber from said inlet, and means for causing a movement between saidliquid and said valve member to restrict the fiovv of said fiuid pastsaid valve member 10V whereby the change of pressure on opposite l sidesof' said point of restriction due to said restriction, will cause saidresilient means to give and snap sai-d valve member into said liquidthereby completely and instantly seal- 15v ing said outlet to thepassage of said fluid. v

GEORGE R. WILDERN.

